Fig. 2
From: Robust multi-group gene set analysis with few replicates
Examples of bad and good permutations. Examples of bad and good permutations. Cancer2* and Healthy1* represent permuted Cancer2 and Healthy1 groups. Under bad permutation examples, Cancer2* fails to include samples from healthy groups and Healthy1* fails to include samples from cancer groups causing strong leakage of biological signal into null distribution. Under good permutation examples, Cancer2* and Healthy1* includes samples from both healthy and cancer groups evenly